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Polarized vs. Non-Polarized Lenses? Myths and Truths

One of the main issues people encounter before purchasing sunglasses nowadays, is the popular question: what is the difference between polarized vs non-polarized lenses?

polarized vs non polarized sunglasses

There are many different theories as to what are the polarized lens benefits; therefore, we decided to help our ShadesDaddy current and future customers with their decision making before placing an order by clarifying the actual facts against the myths.

Importance of UV Protection

First important fact: UV eye protection – A vital reality most people are unaware of is the fact that when using sunglasses, the pupil widens. Consequently, allowing UV rays to enter the eyes easier.

benefits of polarized sunglasses

If a lens offers poor UV protection, sun rays may damage the eyes permanently causing macular degeneration which leads to vision loss and cataracts. However, when purchasing polarized lenses that is one risk the consumer will never have to worry about because they offer 100% protection against UVA and UVB rays.


Benefit To Polarized Sunglasses

Another valuable benefit they offer is almost complete protection against the sun’s horizontal glare, making the reflection of the sun almost unnoticeable for a clearer more defined vision. The intensity of the emission of sun waves is much higher than the scattered ones. Thus, making this kind of light harmful for the eyes and especially for those who are driving.

uv eye protection

The polarized lenses are used to block this intense light that is reflected from flat surfaces. The reason for this is that polarized sunglasses are made with vertical polarization, while the light reflected by the sun on flat surfaces is horizontally polarized. There are also various polarized lens colors that offer different benefits under various circumstances.

polarized lens colors

Benefits To Non-Polarized Sunglasses

The non-polarized lenses have a dark shade and reduce the intensity of light. However, unlike the polarized lenses, they cannot counter the effects of horizontal polarization. These lenses do not take into account the direction in which light is coming.

ray ban anti glare

However, even though polarized lenses improve visibility and provide better protection, they have some disadvantages. In some cases, polarized lenses may reduce the visibility of images produced by liquid crystal displays (LCD). Screens such as cell phones, GPS devices found on cars and boats and other flat LCD screens can be affected by this. 

If you are someone who’s constantly active under the sun, driving, jogging or simply laying under the sun, polarized sunglasses are definitely the better choice when purchasing new shades!


See The Benefits of Polarized Sunglasses

polarized lens benefits

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